{
  "pools": {
    "A.wildcard": {
      "servers": [ "localhost:12345" ]
    },
    "B.wildcard": {
      "servers": [ "localhost:12346" ]
    }
  },
  "route": {
    "type": "FailoverRoute",
    "children": ["PoolRoute|A.wildcard", "PoolRoute|B.wildcard"],
    "failover_errors": ["remote_error"]
  }
}
